Cover for a drinking glass



FIG. 1 is a perspective view showing the top and front of a cover for a drinking glass which forms our design, the broken lines illustrating a drinking glass being for environmental purposes only and forming no part of our design;

FIG. 2 is a top plan view thereof; and,

FIG. 3 is a front elevational view thereof, this view and the rear, right side and left side elevational views being identical. 

CLAIM The ornamental design for a cover for a drinking glass, as shown and described. 